Shuttle valve assembly
US4467825A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 17, 1983 |
| Grant date | Aug 28, 1984 |
| Priority date | — |
| Expiry date | Jan 17, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2567
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A shuttle valve assembly formed with a body having a plurality of nesting housings, an outlet end housing with a fluid signal outlet and a closed end housing. These housings have an aligned axial passageway containing a plurality of tubular spool valve members which are adapted to move axially between opened and closed positions therein individually and in a nested arrangement. Each of the housings has an inlet signal port in communication with the passageway. The nested valve members are moved toward the closed end housing by a primary fluid signal applied to the inlet port on the closed end housing with the primary signal passing to the outlet. A superior fluid signal applied to the inlet port of one of the nested housings, causes the valve member closer to the closed end housing to separate from the remaining nested valve members. As a result this superior signal appears at the outlet. Conversely, the nested valve members are moved toward the outlet end housing by superior fluid signal being applied to the inlet signal port in the closed end housing so that the superior fluid signal appears at the outlet. In a preferred embodiment, the nested housing and spool valve members are …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.